I’ve started using SimpleX with a few privacy minded friends, we migrated our Group from Signal to SimpleX. The experience has been great so far!
What I don’t like about SimpleX is that it’s still missing proper Desktop/3rd Part Apps as far as I’m aware. Furthermore the whole project is still in it’s infancy.
Though it’s already usable day to day.
My plan moving forward with SimpleX is writing a nix-flake to build SimpleX Chat CLI on nix.
This is the same setup I’m running, I can highly recommend it.